Articles | Volume 19, issue 5
https://doi.org/10.5194/cp-19-1061-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-19-1061-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
30 May 2023
Research article |
| 30 May 2023
| 30 May 2023
Deglacial and Holocene sea-ice and climate dynamics in the Bransfield Strait, northern Antarctic Peninsula
Maria-Elena Vorrath
Institute for Geology, University Hamburg, Hamburg, Germany
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
Department of Geosciences, University of Bremen, Bremen, Germany
Paola Cárdenas
Centro de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile
Thomas Opel
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Sebastian Mieruch
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Oliver Esper
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Lester Lembke-Jene
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Johan Etourneau
EPHE/PSL Research University, University of Bordeaux, Bordeaux, France
UMR 5805 EPOC, CNRS, Université de Bordeaux, Bordeaux, France
Andrea Vieth-Hillebrand
Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Niko Lahajnar
Institute for Geology, University Hamburg, Hamburg, Germany
Carina B. Lange
Centro de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile
Centro Oceanográfico COPAS-Coastal, Universidad de Concepción, Concepción, Chile
Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile
Scripps Institution of Oceanography, La Jolla, CA 92037, USA
Amy Leventer
Department of Earth and Environmental Geosciences, Colgate University, New York, USA
Dimitris Evangelinos
UMR 5805 EPOC, CNRS, Université de Bordeaux, Bordeaux, France
Departament de Dinàmica de la Terra i de l'Oceàn, Universitat de Barcelona, Barcelona, Spain
Carlota Escutia
Instituto Andaluz de Ciencia de la tierra, CSIC-Univ. de Granada, Granada, Spain
Gesine Mollenhauer
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
Data sets
Radiocarbon ages, geochemistry, biomarkers and diatoms from the marine sediment core PS97/72-1, Bransfield Strait, Western Antarctic Peninsula M.-E. Vorrath, J. Müller, P. Cárdenas, S. Mieruch, O. Esper, T. Opel, L. Lembke-Jene, J. Etourneau, A. Vieth-Hillebrand, N. Lahajnar, C. B. Lange, A. Leventer, D. Evangelinos, C. Escutia, and G. Mollenhauer https://doi.org/10.1594/PANGAEA.952279
Short summary
Sea ice is important to stabilize the ice sheet in Antarctica. To understand how the global climate and sea ice were related in the past we looked at ancient molecules (IPSO25) from sea-ice algae and other species whose dead cells accumulated on the ocean floor over time. With chemical analyses we could reconstruct the history of sea ice and ocean temperatures of the past 14 000 years. We found out that sea ice became less as the ocean warmed, and more phytoplankton grew towards today's level.
Sea ice is important to stabilize the ice sheet in Antarctica. To understand how the global...
